US3395757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for removing and inhibiting paraffin deposition
Assignee: Electro-Chem Corp
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Filing: 1964-01-16
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Granted: 1968-08-06
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Expires: 1984-01-16
Abstract
No abstract record available.
Inventors
- 👤 Albert R Crossland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:24
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/52; C09K8/524; C10; C10G; C10G73/00; C10G73/02; C10G73/06; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1852; C10L1/192; C10L1/198; C10L1/1985; Y; Y10; Y10S; Y10S507/00; Y10S507/927; Y10S507/929; Y10S507/931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A METHOD FOR INHIBITING THE DEPOSITON AND ACCUMULATION OF WAX-LIKE SUBSTANCES CONTAINED IN CRUDE PETROLEUM UPON THE SURFACES IN CONTACT WITH THE SAID CRUDE PETROLEUM WHICH COMPRISES INTROUDCING INTO THE SAID CRUDE PETROLEUM IN CONTACT WITH THE SAID SURFACES AN INHIBITING AMOUNT OF A TREATING COMPOSITION CONSITING ESSENTIALLY OF A DIALKYLENE GLYCOL MONOLOWERALKYLETHER, CONTAINING FROM 2 TO 5 CARBON ATOMS IN THE ALKYLENE GROUP, AN ALKYLENE GLYCOL MONOLOWERALYLETHER CONTAINING FROM 2 TO 5 CARBON ATOMS IN THE ALKYLENE GROUP, AND A POLYOXYALKYLENE ALKYLPHENOLETHER WHEREIN THE ALKYLENE GROUP CONTAINS FROM 2 TO 5 CARBON ATOMS, THE ALKYL GROUP CONTAINS FROM 5 TO 12 CARBON ATOMS, THE ALKYL GROUP CONTAINS FROM 5 TO 12 CARBON ATOMS, AND CONTAINING FROM 2 TO 10 MOLES OF ALKYLENE OXIDE PER MOLE OF ALKYLPHENOL, IN A WEIGHT RATIO OF FROM ABOUT 1:1:1 TO ABOUT 1:3:2, RESPECTIVELY.
Claim 2
Independent Claim
140 words
A METHOD FOR INHIBITING THE DEPOSITON AND ACCUMULATION OF WAX-LIKE SUBSTANCES CONTAINED IN CRUDE PETROLEUM UPON THE SURFACES IN CONTACT WITH THE SAID CRUDE PETROLEUM WHICH COMPRISES INTROUDCING INTO THE SAID CRUDE PETROLEUM IN CONTACT WITH THE SAID SURFACES AN INHIBITING AMOUNT OF A TREATING COMPOSITION CONSITING ESSENTIALLY OF A DIALKYLENE GLYCOL MONOLOWERALKYLETHER, CONTAINING FROM 2 TO 5 CARBON ATOMS IN THE ALKYLENE GROUP, AN ALKYLENE GLYCOL MONOLOWERALYLETHER CONTAINING FROM 2 TO 5 CARBON ATOMS IN THE ALKYLENE GROUP, AND A POLYOXYALKYLENE ALKYLPHENOLETHER WHEREIN THE ALKYLENE GROUP CONTAINS FROM 2 TO 5 CARBON ATOMS, THE ALKYL GROUP CONTAINS FROM 5 TO 12 CARBON ATOMS, THE ALKYL GROUP CONTAINS FROM 5 TO 12 CARBON ATOMS, AND CONTAINING FROM 2 TO 10 MOLES OF ALKYLENE OXIDE PER MOLE OF ALKYLPHENOL, IN A WEIGHT RATIO OF FROM ABOUT 1:1:1 TO ABOUT 1:3:2, RESPECTIVELY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |